DEQX

The Problem

Loudspeakers are the weakest link in the audio chain, introducing errors and distortion due to their mechanical design. Even an expensive ‘audiophile’ speaker adds roughly an order-of-magnitude more errors and distortion than the signal driving it.

Get Real and 'Be There'

The result of DEQX Calibrated(TM) processing is a dramatic improvement of imaging, accuracy and transparency. Getting ‘Real’ is what DEQX Calibrated(TM) is all about. Together these improvements greatly increase the elusive ‘being there’ experience that has previously been almost unobtainable regardless of cost.

What does the DEQX do?

The DEQX PDC-2.6 Digital Calibration Processor and PDC-2.6P Preamp offer advanced correction of inherent loudspeaker inadequacies through digital inverse filtering of every driver in the speaker system. This provides matched phase response/time alignment and a truly accurate (flat) frequency response across the entire audio spectrum. The result is a dramatic improvement in any loudspeaker’s three-dimensional imaging, accuracy and realism.

The PDC-2.6/P is a 2-input, 6-output digital processor offering individual driver correction with high order digital crossovers (up to 300dB/octave). Speakers can be bi-amped (2-way) or tri-amped (3-way). Speakers with ‘bi-wire’, or ‘tri-wire’ connectors are easily adapted to DEQX correction. Alternately, existing crossovers can be bypassed. Single connector speakers (with passive internal crossovers), or active speakers, can also be DEQX calibrated. These corrections provide an accurate frequency response and improvement in imaging due to improved phase coherence between speakers. Crossovers can also be applied to one or two sub-woofers.

Once the loudspeakers are corrected, the PDC-2.6 can perform a detailed measurement of the speakers in the listening environment with automatic or user definable minimum phase parametric equalization to optimize the room response and speaker setup.

 
  
DEQX
 

Edgar Krammer (6moons.com)

"With digital speaker correction, comprehensive digital crossover options, parametric/graphic EQ plus room correction, the DEQX folks have thought of just about everything and covered all bases with bravura. As if that wasn't enough -- and for the price some audiophiles pay for a stand-alone unit -- you also get a bonus DAC thrown in that is no slouch and a preamplifier that even in bypass pleases with its transparency, smoothness and bass quality. When configured for biamping and active crossover networking, the DEQX is able to elevate modest equipment into the lofty realms of esoterica. Furthermore, all this is offered at a price that's reasonable and attainable to a wide cross section of the audiophile population."